Calculate dimensions and properties of 2D and 3D shapes. Input measurements to determine area, volume, surface area, and perimeter. View interactive 3D models of solids like cube, sphere, and cylinder. Switch between 2D and 3D views for each shape.
Learn Mandarin Chinese vocabulary through graded reading passages and flashcards. Practice word recognition and context understanding by reviewing terms within texts. Test comprehension and retention with interactive exercises and quizzes.
Find hidden words by swiping letters to connect and form words. Solve anagrams and use each once per round. Longer words earn more points and extend remaining time. Supports multiple languages including English, French, German, and Russian.
Translate words between Arabic and five languages: English, German, French, Italian, Spanish. Speak translations aloud. Access over 450,000 entries without internet. Includes 60,000 English-to-Arabic and 66,700 German-to-Arabic entries.
View metro maps and get real-time route details with fare and travel time. Plan trips offline without internet. Use 11 languages including English and Chinese. Access services in 53 cities like Beijing, Shanghai, and Hong Kong.